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Leray E, Moreau T, Fromont A, Edan G. Epidemiology of multiple sclerosis. Rev Neurol (Paris) 2016; 172:3-13. [DOI: 10.1016/j.neurol.2015.10.006] [Citation(s) in RCA: 223] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/05/2015] [Accepted: 10/08/2015] [Indexed: 11/17/2022]
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D'Cunha MA, Pandit L, Malli C. CD6 gene polymorphism rs17824933 is associated with multiple sclerosis in Indian population. Ann Indian Acad Neurol 2016; 19:491-494. [PMID: 27994359 PMCID: PMC5144471 DOI: 10.4103/0972-2327.192384] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: Multiple sclerosis (MS) prevalence has increased worldwide. The known genetic association for MS in the west has not been studied in detail in nonwhite populations and particularly Indians. Objective: The objective of this study was to evaluate some known genetic variations outside the major histocompatibility complex (MHC) region associated with MS in patients of Indian origin. Materials and Methods: We investigated 10 gene-associated single nucleotide polymorphisms (SNP's) outside the MHC region in 300 patients and 720 unrelated controls. Genotyping was performed on an ABI7500 real-time polymerase chain reaction genotyping platform using predesigned TaqMan SNP genotyping assays. Results: CD6 gene associated SNP (rs17824933) showed significant association with MS (P = 4.2 × 10−5, odds ratio [OR] = 2.24, confidence interval (CI) = 1.51–3.33). A modest association was also noted for TMEM39A rs1132200 (P = 0.023, OR = 1.41, CI = 1.05–1.91) and IL2RA rs2104286 (P = 0.04, OR = 1.3, CI = 1.006–1.67). In the remaining SNPs, the allele frequencies were overexpressed in patients when compared to healthy controls. Conclusion: Our data illustrate the similarity in risk association between Indian and European populations for MS.
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Affiliation(s)
- Mary Anitha D'Cunha
- Center for Advanced Neurological Research, KS Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Lekha Pandit
- Center for Advanced Neurological Research, KS Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
| | - Chaithra Malli
- Center for Advanced Neurological Research, KS Hegde Medical Academy, Nitte University, Mangalore, Karnataka, India
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203
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The search for the target antigens of multiple sclerosis, part 1: autoreactive CD4+ T lymphocytes as pathogenic effectors and therapeutic targets. Lancet Neurol 2015; 15:198-209. [PMID: 26724103 DOI: 10.1016/s1474-4422(15)00334-8] [Citation(s) in RCA: 137] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Identification of the target antigens of pathogenic antibodies and T cells is of fundamental importance for understanding the pathogenesis of multiple sclerosis, and for the development of personalised treatments for the disease. Myelin-specific CD4+ T cells emerged long ago as a key player in animal models of multiple sclerosis. Taking a forward-translational approach, autoreactive CD4+ T cells have been studied extensively in patients with multiple sclerosis, and there is evidence, but as yet no direct proof, that autoreactive CD4+ T cells are a key player in the pathogenesis of the disorder. Several therapies that selectively target myelin-specific CD4+ T cells have been investigated in clinical trials up to phase 3. So far, however, none of these (mostly underpowered) therapeutic trials have provided definitive evidence of clinical efficacy. One major obstacle to personalised, highly selective immunotherapy is the absence of standardised and reliable assays to assess antigen-specific human T-cell responses. Such assays would be essential for stratification of patients with multiple sclerosis according to their individual target antigens.
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204
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Toro J, Cuellar-Giraldo D, Díaz-Cruz C, Burbano LE, Guío CM, Reyes S, Cortes F, Cárdenas-Robledo S, Narváez DM, Cárdenas W, Porras A, Lattig MC, Groot de Restrepo H. HLA-DRB1*14 is a protective allele for multiple sclerosis in an admixed Colombian population. NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION 2015; 3:e192. [PMID: 26740965 PMCID: PMC4694072 DOI: 10.1212/nxi.0000000000000192] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 11/03/2015] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The aim of this study was to determine ancestry informative markers, mitochondrial DNA haplogroups, and the association between HLA-DRB1 alleles and multiple sclerosis (MS) in a group of patients from Bogotá, Colombia. METHODS In this case-control study, genomic DNA was isolated and purified from blood samples. HLA-DRB1 allele genotyping was done using PCR. Mitochondrial hypervariable region 1 was amplified and haplogroups were determined using HaploGrep software. Genomic ancestry was estimated by genotyping a panel of ancestry informative markers. To test the association of HLA polymorphisms and MS, we ran separate multivariate logistic regression models. Bonferroni correction was used to account for multiple regression tests. RESULTS A total of 100 patients with MS (mean age 40.4 ± 12 years; 70% females) and 200 healthy controls (mean age 37.6 ± 11 years; 83.5% females) were included in the analysis. Ancestry proportions and haplogroup frequencies did not differ between patients and controls. HLA-DRB1*15 was present in 31% of cases and 13.5% of controls, whereas HLA-DRB1*14 was present in 5% of cases and 15.5% of controls. In the multivariate model, HLA-DRB1*15 was significantly associated with MS (odds ratio [OR] = 3.05, p < 0.001), whereas HLA-DRB1*14 was confirmed as a protective factor in our population (OR = 0.16, p = 0.001). CONCLUSIONS This study provides evidence indicating that HLA-DRB1*15 allele confers susceptibility to MS and HLA-DRB1*14 allele exerts resistance to MS in a highly admixed population. This latter finding could partially explain the low prevalence of MS in Bogotá, Colombia.
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Affiliation(s)
- Jaime Toro
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - David Cuellar-Giraldo
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Camilo Díaz-Cruz
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Lisseth-Estefania Burbano
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Claudia-Marcela Guío
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Saúl Reyes
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Fabián Cortes
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Simón Cárdenas-Robledo
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Diana M Narváez
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Wilmer Cárdenas
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Alexandra Porras
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - María-Claudia Lattig
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
| | - Helena Groot de Restrepo
- School of Medicine (J.T., D.C.-G., C.-M.G., S.R., F.C., A.P.), Universidad El Bosque, Bogotá, Colombia; Department of Neurology (J.T., D.C.-G., C.D.-C., L.-E.B., C.-M.G., S.R., S.C.-R.), Hospital Universitario Fundación Santa Fe de Bogotá, Bogotá, Colombia; and School of Medicine (J.T., D.C.-G., C.D.-C., L.-E.B., S.R., D.M.N., H.G.d.R.) and Human Genetics Laboratory (D.C.-G., D.M.N., W.C., M.-C.L., H.G.d.R.), Department of Biological Sciences, Universidad de Los Andes, Bogotá, Colombia
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Salou M, Nicol B, Garcia A, Laplaud DA. Involvement of CD8(+) T Cells in Multiple Sclerosis. Front Immunol 2015; 6:604. [PMID: 26635816 PMCID: PMC4659893 DOI: 10.3389/fimmu.2015.00604] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 11/12/2015] [Indexed: 11/13/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system characterized by focal demyelination patches associated with inflammatory infiltrates containing T lymphocytes. For decades, CD4(+) T cells have been recognized as playing a major role in the disease, especially in animal models, which has led to the development of several therapies. However, interest has recently developed in the involvement of CD8(+) T cells in MS following the analysis of infiltrating T cells in human brain lesions. A broad range of evidence now suggests that the pathological role of this T cell subset in MS may have been underestimated. In this review, we summarize the literature implicating CD8(+) T cells in the pathophysiology of MS. We present data from studies in the fields of genetics, anatomopathology and immunology, mainly in humans but also in animal models of MS. Altogether, this strongly suggests that CD8(+) T cells may be major effectors in the disease process, and that the development of treatments specifically targeting this subset would be germane.
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Affiliation(s)
- Marion Salou
- UMR 1064, INSERM , Nantes , France ; Medicine Department, Nantes University , Nantes , France
| | - Bryan Nicol
- UMR 1064, INSERM , Nantes , France ; Medicine Department, Nantes University , Nantes , France
| | - Alexandra Garcia
- UMR 1064, INSERM , Nantes , France ; ITUN, Nantes Hospital , Nantes , France
| | - David-Axel Laplaud
- UMR 1064, INSERM , Nantes , France ; Department of Neurology, Nantes Hospital , Nantes , France ; Centre d'Investigation Clinique, INSERM 004 , Nantes , France
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206
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Savarin C, Bergmann CC, Gaignage M, Stohlman SA. Self-reactive CD4(+) T cells activated during viral-induced demyelination do not prevent clinical recovery. J Neuroinflammation 2015; 12:207. [PMID: 26559484 PMCID: PMC4642610 DOI: 10.1186/s12974-015-0426-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 11/06/2015] [Indexed: 12/18/2022] Open
Abstract
Background Microbial infections have been implicated in initiating and enhancing severity of autoimmune diseases including the demyelinating disease multiple sclerosis (MS). Nevertheless, the incidence of both acute and persisting viral infections without evidence of autoimmune sequelae suggests that this process is well controlled. The conditions promoting or stemming self-reactive (SR) T cells following viral-induced tissue damage thus need to be better defined. Using a non-fatal viral mouse model of encephalomyelitis associated with demyelination and disability, yet ultimate clinical improvement, this study set out to monitor uptake and presentation of endogenous myelin antigens, as well as induction and fate of SR T cells. Methods Activation and central nervous system (CNS) recruitment of myelin-specific CD4 T cells was analyzed by flow cytometry during encephalomyelitis induced by a glia tropic murine coronavirus. Potential antigen-presenting cells (APC) ingesting myelin were characterized by flow cytometry and their ability to activate SR T cells tested by co-culture with carboxyfluorescein succinimidyl ester (CFSE)-labeled myelin-specific CD4 T cells. Endogenous SR T cell kinetics was analyzed within both cervical lymph nodes and CNS by Enzyme-Linked ImmunoSpot (ELISPOT) following viral infection. Results The data demonstrate the presence of APC capable of activating SR T cells in both draining lymph nodes and the CNS temporally correlating with overt demyelination. While both the CNS-infiltrating myeloid population and microglia ingested myelin, only CNS-infiltrating APC were capable of presenting endogenous myelin antigen to SR T cells ex vivo. Finally, SR T cell activation from the endogenous T cell repertoire was most notable when infectious virus was controlled and paralleled myelin damage. Although SR T cell accumulation peaked in the persistently infected CNS during maximal demyelination, they were not preferentially retained. Their gradual decline, despite ongoing demyelination, suggested minimal re-stimulation and pathogenic function in vivo consistent with the lack of autoimmune symptoms. Conclusions The results demonstrate the potential for CNS tissue destruction to induce and recruit SR T cells to the injury site and support a host suppressive mechanism limiting development of autoimmunity.
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Affiliation(s)
- Carine Savarin
- Department of Neurosciences NC-30, Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
| | - Cornelia C Bergmann
- Department of Neurosciences NC-30, Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
| | - Melanie Gaignage
- Department of Neurosciences NC-30, Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA. .,Present address: Unit of Experimental Medicine, de Duve Institute, Universite Catholique de Louvain, Brussels, Belgium.
| | - Stephen A Stohlman
- Department of Neurosciences NC-30, Lerner Research Institute, The Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
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207
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Wagner M, Sobczyński M, Karabon L, Bilińska M, Pokryszko-Dragan A, Pawlak-Adamska E, Cyrul M, Kuśnierczyk P, Jasek M. Polymorphisms in CD28, CTLA-4, CD80 and CD86 genes may influence the risk of multiple sclerosis and its age of onset. J Neuroimmunol 2015; 288:79-86. [DOI: 10.1016/j.jneuroim.2015.09.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 09/07/2015] [Accepted: 09/10/2015] [Indexed: 01/01/2023]
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208
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Kvistad SS, Myhr KM, Holmøy T, Šaltytė Benth J, Wergeland S, Beiske AG, Bjerve KS, Hovdal H, Lilleås F, Midgard R, Pedersen T, Bakke SJ, Michelsen AE, Aukrust P, Ueland T, Sagen JV, Torkildsen Ø. Body mass index influence interferon-beta treatment response in multiple sclerosis. J Neuroimmunol 2015; 288:92-7. [DOI: 10.1016/j.jneuroim.2015.09.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 09/18/2015] [Accepted: 09/22/2015] [Indexed: 12/16/2022]
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209
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Dankowski T, Buck D, Andlauer TFM, Antony G, Bayas A, Bechmann L, Berthele A, Bettecken T, Chan A, Franke A, Gold R, Graetz C, Haas J, Hecker M, Herms S, Infante-Duarte C, Jöckel KH, Kieseier BC, Knier B, Knop M, Kümpfel T, Lichtner P, Lieb W, Lill CM, Limmroth V, Linker RA, Loleit V, Meuth SG, Moebus S, Müller-Myhsok B, Nischwitz S, Nöthen MM, Paul F, Pütz M, Ruck T, Salmen A, Stangel M, Stellmann JP, Strauch K, Stürner KH, Tackenberg B, Then Bergh F, Tumani H, Waldenberger M, Weber F, Wiendl H, Wildemann B, Zettl UK, Ziemann U, Zipp F, Hemmer B, Ziegler A. Successful Replication of GWAS Hits for Multiple Sclerosis in 10,000 Germans Using the Exome Array. Genet Epidemiol 2015; 39:601-8. [PMID: 26497834 DOI: 10.1002/gepi.21933] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 09/01/2015] [Accepted: 09/02/2015] [Indexed: 12/20/2022]
Abstract
Genome-wide association studies (GWAS) successfully identified various chromosomal regions to be associated with multiple sclerosis (MS). The primary aim of this study was to replicate reported associations from GWAS using an exome array in a large German study. German MS cases (n = 4,476) and German controls (n = 5,714) were genotyped using the Illumina HumanExome v1-Chip. Genotype calling was performed with the Illumina Genome Studio(TM) Genotyping Module, followed by zCall. Single-nucleotide polymorphisms (SNPs) in seven regions outside the human leukocyte antigen (HLA) region showed genome-wide significant associations with MS (P values < 5 × 10(-8) ). These associations have been reported previously. In addition, SNPs in three previously reported regions outside the HLA region yielded P values < 10(-5) . The effect of nine SNPs in the HLA region remained (P < 10(-5) ) after adjustment for other significant SNPs in the HLA region. All of these findings have been reported before or are driven by known risk loci. In summary, findings from previous GWAS for MS could be successfully replicated. We conclude that the regions identified in previous GWAS are also associated in the German population. This reassures the need for detailed investigations of the functional mechanisms underlying the replicated associations.
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Affiliation(s)
- Theresa Dankowski
- Institut für Medizinische Biometrie und Statistik, Universität zu Lübeck, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
| | - Dorothea Buck
- Department of Neurology, Technische Universität München, Munich, Germany
| | | | - Gisela Antony
- Central Information Office (CIO), Philipps University Marburg, Marburg, Germany
| | - Antonios Bayas
- Department of Neurology, Klinikum Augsburg, Augsburg, Germany
| | - Lukas Bechmann
- Department of Neurology, University of Leipzig, Leipzig, Germany.,Institute of Medical Microbiology, Otto-von-Guericke University, Magdeburg, Germany
| | - Achim Berthele
- Department of Neurology, Technische Universität München, Munich, Germany
| | | | - Andrew Chan
- Department of Neurology, St. Josef Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Andre Franke
- Institute of Clinical Molecular Biology (IKMB), Christian-Albrechts-University of Kiel, Kiel, Germany
| | - Ralf Gold
- Department of Neurology, St. Josef Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Christiane Graetz
- Department of Neurology, University Medical Center Mainz, Mainz, Germany
| | - Jürgen Haas
- Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
| | - Michael Hecker
- Department of Neurology, University of Rostock, Rostock, Germany
| | - Stefan Herms
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany.,Division of Medical Genetics, University Hospital, Basel, Switzerland.,Human Genetics Research Group, Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | - Karl-Heinz Jöckel
- Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | - Bernd C Kieseier
- Department of Neurology, Heinrich Heine University, Düsseldorf, Germany
| | - Benjamin Knier
- Department of Neurology, Technische Universität München, Munich, Germany
| | - Matthias Knop
- Department of Neurology, MPI of Psychiatry, Munich, Germany
| | - Tania Kümpfel
- Institute of Clinical Neuroimmunology, Ludwigs-Maximilians-Universität, Munich, Germany
| | - Peter Lichtner
- Institute of Human Genetics, Technische Universität München, Munich, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Wolfgang Lieb
- Institute of Epidemiology and Biobank popgen, Christian-Albrechts-Universität Kiel, Kiel, Germany
| | - Christina M Lill
- Department of Neurology, University Medical Center Mainz, Mainz, Germany.,Platform for Genome Analytics, Institutes of Neurogenetics, & for Integrative and Experimental Genomics, University of Lübeck, Lübeck, Germany
| | - Volker Limmroth
- Department of Neurology, Hospital Köln-Merheim, Köln, Germany
| | - Ralf A Linker
- Department of Neurology, University Hospital Erlangen, Erlangen, Germany
| | - Verena Loleit
- Department of Neurology, Technische Universität München, Munich, Germany
| | - Sven G Meuth
- Department für Neurologie, Klinik für Allgemeine Neurologie, Münster, Germany
| | - Susanne Moebus
- Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University Duisburg-Essen, Essen, Germany
| | | | | | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Friedemann Paul
- Department of Neurology, Charité University Medicine Berlin, Berlin, Germany.,NeuroCure Clinical Research Center, Experimental and Clinical Research Center, Max Delbrueck Center for Molecular Medicine and, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Michael Pütz
- Department of Neurology, Philipps-University of Marburg, Marburg, Germany
| | - Tobias Ruck
- Department für Neurologie, Klinik für Allgemeine Neurologie, Münster, Germany
| | - Anke Salmen
- Department of Neurology, St. Josef Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Martin Stangel
- Clinical Neuroimmunology and Neurochemistry, Department of Neurology, Hannover Medical School, Hannover, Germany
| | - Jan-Patrick Stellmann
- Department of Neurology and, Institute of Neuroimmunology and MS (INIMS), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Konstantin Strauch
- Institute of Genetic Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, Munich, Germany
| | - Klarissa H Stürner
- Department of Neurology and, Institute of Neuroimmunology and MS (INIMS), University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Björn Tackenberg
- Department of Neurology, Philipps-University of Marburg, Marburg, Germany
| | - Florian Then Bergh
- Department of Neurology and Translational Center for Regenerative Medicine, University of Leipzig, Leipzig, Germany
| | | | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany.,Institute of Epidemiology II, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Frank Weber
- Department of Neurology, MPI of Psychiatry, Munich, Germany.,Neurological Clinic, Medical Park, Bad Camberg, Germany
| | - Heinz Wiendl
- Department für Neurologie, Klinik für Allgemeine Neurologie, Münster, Germany
| | - Brigitte Wildemann
- Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany
| | - Uwe K Zettl
- Department of Neurology, University of Rostock, Rostock, Germany
| | - Ulf Ziemann
- Department of Neurology, University Hospital, Eberhard-Karls-Universität Tübingen, Tübingen, Germany
| | - Frauke Zipp
- Department of Neurology, University Medical Center Mainz, Mainz, Germany
| | - Bernhard Hemmer
- Department of Neurology, Technische Universität München, Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Andreas Ziegler
- Institut für Medizinische Biometrie und Statistik, Universität zu Lübeck, Universitätsklinikum Schleswig-Holstein, Campus Lübeck, Lübeck, Germany.,Zentrum für Klinische Studien, Universität zu Lübeck, Lübeck, Germany.,School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa
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210
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Grebing M, Nielsen HH, Fenger CD, T Jensen K, von Linstow CU, Clausen BH, Söderman M, Lambertsen KL, Thomassen M, Kruse TA, Finsen B. Myelin-specific T cells induce interleukin-1beta expression in lesion-reactive microglial-like cells in zones of axonal degeneration. Glia 2015; 64:407-24. [PMID: 26496662 DOI: 10.1002/glia.22937] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 10/07/2015] [Indexed: 12/18/2022]
Abstract
Infiltration of myelin-specific T cells into the central nervous system induces the expression of proinflammatory cytokines in patients with multiple sclerosis (MS). We have previously shown that myelin-specific T cells are recruited into zones of axonal degeneration, where they stimulate lesion-reactive microglia. To gain mechanistic insight, we used RNA microarray analysis to compare the transcript profile in hippocampi from perforant pathway axonal-lesioned mice with and without adoptively transferred myelin-specific T cells 2 days postlesion, when microglia are clearly lesion reactive. Pathway analysis revealed that, among the 1,447 differently expressed transcripts, the interleukin (IL)-1 pathway including all IL-1 receptor ligands was upregulated in the presence of myelin-specific T cells. Quantitative polymerase chain reaction showed increased mRNA levels of IL-1β, IL-1α, and IL-1 receptor antagonist in the T-cell-infiltrated hippocampi from axonal-lesioned mice. In situ hybridization and immunohistochemistry showed a T-cell-enhanced lesion-specific expression of IL-1β mRNA and protein, respectively, and induction of the apoptosis-associated speck-like protein, ASC, in CD11b(+) cells. Double in situ hybridization showed colocalization of IL-1β mRNA in a subset of CD11b mRNA(+) cells, of which many were part of cellular doublets or clusters, characteristic of proliferating, lesion-reactive microglia. Double-immunofluorescence showed a T-cell-enhanced colocalization of IL-1β to CD11b(+) cells, including lesion-reactive CD11b(+) ramified microglia. These results suggest that myelin-specific T cells stimulate lesion-reactive microglial-like cells to produce IL-1β. These findings are relevant to understand the consequences of T-cell infiltration in white and gray matter lesions in patients with MS.
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Affiliation(s)
- Manuela Grebing
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Helle H Nielsen
- Department of Neurology, Odense University Hospital, Odense C, Denmark
| | - Christina D Fenger
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Katrine T Jensen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Christian U von Linstow
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Bettina H Clausen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Martin Söderman
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Kate L Lambertsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
| | - Mads Thomassen
- Department of Clinical Genetics, Odense University Hospital, Odense C, Denmark
| | - Torben A Kruse
- Department of Clinical Genetics, Odense University Hospital, Odense C, Denmark
| | - Bente Finsen
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, Odense C, Denmark
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211
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Lill CM, Luessi F, Alcina A, Sokolova EA, Ugidos N, de la Hera B, Guillot-Noël L, Malhotra S, Reinthaler E, Schjeide BMM, Mescheriakova JY, Mashychev A, Wohlers I, Akkad DA, Aktas O, Alloza I, Antigüedad A, Arroyo R, Astobiza I, Blaschke P, Boyko AN, Buttmann M, Chan A, Dörner T, Epplen JT, Favorova OO, Fedetz M, Fernández O, García-Martínez A, Gerdes LA, Graetz C, Hartung HP, Hoffjan S, Izquierdo G, Korobko DS, Kroner A, Kubisch C, Kümpfel T, Leyva L, Lohse P, Malkova NA, Montalban X, Popova EV, Rieckmann P, Rozhdestvenskii AS, Schmied C, Smagina IV, Tsareva EY, Winkelmann A, Zettl UK, Binder H, Cournu-Rebeix I, Hintzen R, Zimprich A, Comabella M, Fontaine B, Urcelay E, Vandenbroeck K, Filipenko M, Matesanz F, Zipp F, Bertram L. Genome-wide significant association with seven novel multiple sclerosis risk loci. J Med Genet 2015; 52:848-55. [DOI: 10.1136/jmedgenet-2015-103442] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 09/17/2015] [Indexed: 11/04/2022]
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Abstract
There have been significant advances in our understanding of human autoimmunity that have led to improvements in classification and diagnosis and, most importantly, research advances in new therapies. The importance of autoimmunity and the mechanisms that lead to clinical disease were first recognized about 50 years ago following the pioneering studies of Macfarlane Burnett and his Nobel Prize-winning hypothesis of the 'forbidden clone'. Such pioneering efforts led to a better understanding not only of autoimmunity, but also of lymphoid cell development, thymic education, apoptosis and deletion of autoreactive cells. Contemporary theories suggest that the development of an autoimmune disease requires a genetic predisposition and environmental factors that trigger the immune pathways that lead, ultimately, to tissue destruction. Despite extensive research, there are no genetic tools that can be used clinically to predict the risk of autoimmune disease. Indeed, the concordance of autoimmune disease in identical twins is 12-67%, highlighting not only a role for environmental factors, but also the potential importance of stochastic or epigenetic phenomena. On the other hand, the identification of cytokines and chemokines, and their cognate receptors, has led to novel therapies that block pathological inflammatory responses within the target organ and have greatly improved the therapeutic effect in patients with autoimmune disease, particularly rheumatoid arthritis. Further advances involving the use of multiplex platforms for diagnosis and identification of new therapeutic agents should lead to major breakthroughs within the next decade.
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Affiliation(s)
- Lifeng Wang
- Research Center for Biological Therapy, The Institute of Translational Hepatology, Beijing 302 Hospital, Beijing, China
| | - Fu-Sheng Wang
- Research Center for Biological Therapy, The Institute of Translational Hepatology, Beijing 302 Hospital, Beijing, China
| | - M Eric Gershwin
- Division of Rheumatology, Allergy and Clinical Immunology, University of California at Davis School of Medicine, Davis, CA, USA
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213
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On vaccine's adjuvants and autoimmunity: Current evidence and future perspectives. Autoimmun Rev 2015; 14:880-8. [DOI: 10.1016/j.autrev.2015.05.014] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Accepted: 05/24/2015] [Indexed: 01/08/2023]
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214
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A review of genome-wide association studies for multiple sclerosis: classical and hypothesis-driven approaches. Hum Genet 2015; 134:1143-62. [DOI: 10.1007/s00439-015-1601-2] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 09/10/2015] [Indexed: 12/17/2022]
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215
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Teunissen CE, Malekzadeh A, Leurs C, Bridel C, Killestein J. Body fluid biomarkers for multiple sclerosis--the long road to clinical application. Nat Rev Neurol 2015; 11:585-96. [PMID: 26392381 DOI: 10.1038/nrneurol.2015.173] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
There is a strong unmet clinical need for objective body fluid biomarkers to assist early diagnosis and estimate long-term prognosis, monitor treatment response and predict potential adverse effects in multiple sclerosis (MS). Here, we review recent studies (focusing on 2012 to early 2015) on body fluid markers in MS from the perspective of their clinical utility. Because the first step towards clinical implementation of a newly discovered biomarker is independent replication, we focus on biomarkers that have been validated in at least two independent cohorts. We also discuss recent data challenging earlier findings, and biomarkers for which new clinical uses are suggested. For early MS diagnosis and prediction of conversion from clinically isolated syndrome to MS, several new B-cell-associated candidate blood biomarkers have emerged. For prognosis, several novel axonal damage markers should be adopted to biomarker panels. The number of disease-modifying treatments for MS has increased sharply, but biomarkers for treatment response monitoring and adverse effect prediction are scarce, and markers for subtyping and staging of MS are still lacking. In view of the availability and implementation of several standardized protocols to optimize biomarker studies, we expect biomarker development for MS to be improved and accelerated, with clinical implementation in the near future.
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Affiliation(s)
- Charlotte E Teunissen
- Neurochemistry Laboratory and Biobank, Department of Clinical Chemistry, Neuroscience Campus Amsterdam, VU University Medical Centre, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Arjan Malekzadeh
- Neurochemistry Laboratory and Biobank, Department of Clinical Chemistry, Neuroscience Campus Amsterdam, VU University Medical Centre, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Cyra Leurs
- Department of Neurology, Neuroscience Campus Amsterdam, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
| | - Claire Bridel
- Department of Clinical Neurosciences, Division of Neurology, Unit of Neuroimmunology and Multiple Sclerosis, Geneva University Hospital, Gabrielle-Perret-Gentil 4, 1205 Geneva, Switzerland
| | - Joep Killestein
- Department of Neurology, Neuroscience Campus Amsterdam, VU University Medical Center, De Boelelaan 1117, 1081 HV Amsterdam, Netherlands
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216
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Dang AK, Tesfagiorgis Y, Jain RW, Craig HC, Kerfoot SM. Meningeal Infiltration of the Spinal Cord by Non-Classically Activated B Cells is Associated with Chronic Disease Course in a Spontaneous B Cell-Dependent Model of CNS Autoimmune Disease. Front Immunol 2015; 6:470. [PMID: 26441975 PMCID: PMC4584934 DOI: 10.3389/fimmu.2015.00470] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 08/31/2015] [Indexed: 12/01/2022] Open
Abstract
We characterized B cell infiltration of the spinal cord in a B cell-dependent spontaneous model of central nervous system (CNS) autoimmunity that develops in a proportion of mice with mutant T and B cell receptors specific for myelin oligodendrocyte glycoprotein. We found that, while males are more likely to develop disease, females are more likely to have a chronic rather than monophasic disease course. B cell infiltration of the spinal cord was investigated by histology and FACs. CD4+ T cell infiltration was pervasive throughout the white and in some cases gray matter. B cells were almost exclusively restricted to the meninges, often in clusters reminiscent of those described in human multiple sclerosis. These clusters were typically found adjacent to white matter lesions and their presence was associated with a chronic disease course. Extensive investigation of these clusters by histology did not identify features of lymphoid follicles, including organization of T and B cells into separate zones, CD35+ follicular dendritic cells, or germinal centers. The majority of cluster B cells were IgD+ with little evidence of class switch. Consistent with this, B cells isolated from the spinal cord were of the naïve/memory CD38hi CD95lo phenotype. Nevertheless, they were CD62Llo and CD80hi compared to lymph node B cells suggesting that they were at least partly activated and primed to present antigen. Therefore, if meningeal B cells contribute to CNS pathology in autoimmunity, follicular differentiation is not necessary for the pathogenic mechanism.
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Affiliation(s)
- Amy K Dang
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Yodit Tesfagiorgis
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Rajiv W Jain
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Heather C Craig
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
| | - Steven M Kerfoot
- Department of Microbiology and Immunology, Schulich School of Medicine and Dentistry, Western University Canada , London, ON , Canada
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217
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Role of intestinal microbiota in the development of multiple sclerosis. Neurologia 2015; 32:175-184. [PMID: 26383059 DOI: 10.1016/j.nrl.2015.07.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 07/07/2015] [Accepted: 07/28/2015] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Multiple sclerosis (MS) is a demyelinating disease that affects young adults; in that age group, it represents the second leading cause of disability in our setting. Its precise aetiology has not been elucidated, but it is widely accepted to occur in genetically predisposed patients who are exposed to certain environmental factors. The discovery of the regulatory role played by intestinal microbiota in various autoimmune diseases has opened a new line of research in this field, which is discussed in this review. DEVELOPMENT We reviewed published studies on the role of the microbiota in the development of both MS and its animal model, experimental autoimmune encephalomyelitis (EAE). In mice, it has been shown that intestinal microorganisms regulate the polarisation of T helper cells from Th1-Th17 up to Th2, the function of regulatory T cells, and the activity of B cells; they participate in the pathogenesis of EAE and contribute to its prevention and treatment. In contrast, evidence in humans is still scarce and mainly based on case-control studies that point to the presence of differences in certain bacterial communities. CONCLUSIONS Multiple evidence points to the role of microbiota in EAE. Extrapolation of these results to MS is still in the early stages of research, and studies are needed to define which bacterial populations are associated with MS, the role they play in pathogenesis, and the therapeutic possibilities this knowledge offers us.
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218
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Carrieri PB, Carbone F, Perna F, Bruzzese D, La Rocca C, Galgani M, Montella S, Petracca M, Florio C, Maniscalco GT, Spitaleri DLA, Iuliano G, Tedeschi G, Della Corte M, Bonavita S, Matarese G. Longitudinal assessment of immuno-metabolic parameters in multiple sclerosis patients during treatment with glatiramer acetate. Metabolism 2015; 64:1112-21. [PMID: 25986733 DOI: 10.1016/j.metabol.2015.05.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Revised: 04/28/2015] [Accepted: 05/02/2015] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We investigated the effect of glatiramer acetate (GA) on the modulation of immune cell subpopulations and serum levels of multiple immune/metabolic markers in patients with relapsing-remitting multiple sclerosis (RRMS) to understand whether the treatment with GA could induce a specific change in the immunometabolic asset of patients with RRMS. MATERIAL AND METHODS We performed an extensive peripheral blood immunophenotyping and measured serum levels of several parameters involved in the pathogenesis of RRMS and also relevant in the pathogenesis of metabolic syndrome and obesity such as leptin, soluble leptin-receptor (sLep-R), myeloperoxidase (MPO), soluble CD40 ligand (sCD40-L), soluble tumor necrosis factor-receptor (sTNF-R), monocyte chemoattractant protein 1 (MCP-1), soluble Inter-Cellular Adhesion Molecule-1 (sICAM-1) and osteoprotegerin (OPG), in 20 naïve-to-treatment RRMS patients and 20 healthy controls. We repeated these analyses over time at 6 and 12 months after starting GA treatment. RESULTS Our analysis showed that naïve-to-treatment RRMS patients had a lower number of CD16(+)CD56(+) NK cells, CD19(+) B cells, CD4(+) T cells co-expressing the MHC class II activation marker HLA-DR (CD4(+)DR(+)) and naïve CD4(+)CD45RA(+) T cells in basal conditions. GA treatment induced a specific and significant decrease of circulating CD19(+) B cells. Naïve-to-treatment RRMS patients also showed a significantly higher number of CD4(+) T cells with a memory phenotype (CD4(+)CD45RO(+)) whose peripheral frequency was not affected by GA treatment. These changes over time associated with a higher serum concentration of leptin and lower levels of MPO. GA treatment also reduced significantly the circulating levels of sCD40-L and sTNF-R overtime. CONCLUSIONS Our data suggest that the clinical outcome of GA treatment is associated with changes in immune cell subpopulations and modulation of specific immunometabolic markers. These data add substantial evidence of the immune modulating effect of GA during RRMS and could be of relevance in understanding the pathogenesis of disease and its follow-up.
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Affiliation(s)
- Pietro B Carrieri
- Dipartimento di Neuroscienze, Scienze Riproduttive ed Odontostomatologiche, Università di Napoli "Federico II", Napoli, Italy
| | - Fortunata Carbone
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II", Napoli, Italy
| | - Francesco Perna
- Dipartimento di Medicina Clinica e Chirurgia, Università di Napoli "Federico II", Napoli, Italy
| | - Dario Bruzzese
- Dipartimento di Sanità Pubblica, Università di Napoli "Federico II", Napoli, Italy
| | - Claudia La Rocca
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II", Napoli, Italy
| | - Mario Galgani
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II", Napoli, Italy
| | - Silvana Montella
- Dipartimento di Neuroscienze, Scienze Riproduttive ed Odontostomatologiche, Università di Napoli "Federico II", Napoli, Italy
| | - Maria Petracca
- Dipartimento di Neuroscienze, Scienze Riproduttive ed Odontostomatologiche, Università di Napoli "Federico II", Napoli, Italy; Department of Neurology, Icahn School of Medicine at Mount Sinai, NY, USA
| | - Ciro Florio
- Dipartimento di Neurologia, Azienda Ospedaliera di Rilievo Nazionale Cardarelli, Napoli, Italy
| | - Giorgia T Maniscalco
- Dipartimento di Neurologia, Azienda Ospedaliera di Rilievo Nazionale Cardarelli, Napoli, Italy
| | - Daniele L A Spitaleri
- Unità Operativa Complessa di Neurologia, Azienda Ospedaliera di Rilevo Nazionale S. Giuseppe Moscati, Avellino, Italy
| | - Gerardo Iuliano
- Dipartimento di Neuroscienze, Unità di Malattie Demielinizzanti, Azienda Ospedaliera Universitaria S. Giovanni di Dio e Ruggi d'Aragona, Salerno, Italy
| | - Gioacchino Tedeschi
- Dipartimento di Scienze Mediche, Chirurgiche, Neurologiche, Metaboliche e dell'Invecchiamento, Seconda Università di Napoli, Napoli, Italy
| | - Marida Della Corte
- Dipartimento di Scienze Mediche, Chirurgiche, Neurologiche, Metaboliche e dell'Invecchiamento, Seconda Università di Napoli, Napoli, Italy
| | - Simona Bonavita
- Dipartimento di Scienze Mediche, Chirurgiche, Neurologiche, Metaboliche e dell'Invecchiamento, Seconda Università di Napoli, Napoli, Italy
| | - Giuseppe Matarese
- Dipartimento di Medicina e Chirurgia, Facoltà di Medicina e Chirurgia, Università di Salerno, Baronissi Campus, Baronissi, Salerno, Italy; IRCCS MultiMedica, Milano, Italy.
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219
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Ortiz MA, Núñez C, Ordóñez D, Alvarez-Cermeño JC, Martínez-Rodriguez JE, Sánchez AJ, Arroyo R, Izquierdo G, Malhotra S, Montalban X, García-Merino A, Munteis E, Alcina A, Comabella M, Matesanz F, Villar LM, Urcelay E. Influence of the LILRA3 Deletion on Multiple Sclerosis Risk: Original Data and Meta-Analysis. PLoS One 2015; 10:e0134414. [PMID: 26274821 PMCID: PMC4537248 DOI: 10.1371/journal.pone.0134414] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 07/08/2015] [Indexed: 01/16/2023] Open
Abstract
Background Multiple sclerosis (MS) is a neurodegenerative, autoimmune disease of the central nervous system. Genome-wide association studies (GWAS) have identified over hundred polymorphisms with modest individual effects in MS susceptibility and they have confirmed the main individual effect of the Major Histocompatibility Complex. Additional risk loci with immunologically relevant genes were found significantly overrepresented. Nonetheless, it is accepted that most of the genetic architecture underlying susceptibility to the disease remains to be defined. Candidate association studies of the leukocyte immunoglobulin-like receptor LILRA3 gene in MS have been repeatedly reported with inconsistent results. Objectives In an attempt to shed some light on these controversial findings, a combined analysis was performed including the previously published datasets and three newly genotyped cohorts. Both wild-type and deleted LILRA3 alleles were discriminated in a single-tube PCR amplification and the resulting products were visualized by their different electrophoretic mobilities. Results and Conclusion Overall, this meta-analysis involved 3200 MS patients and 3069 matched healthy controls and it did not evidence significant association of the LILRA3 deletion [carriers of LILRA3 deletion: p = 0.25, OR (95% CI) = 1.07 (0.95–1.19)], even after stratification by gender and the HLA-DRB1*15:01 risk allele.
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Affiliation(s)
- Miguel A Ortiz
- Immunology Department, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - Concepción Núñez
- Immunology Department, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
| | - David Ordóñez
- Immunogenetics & Histocompatibility, Instituto de Investigación Sanitaria Puerta de Hierro, Majadahonda, Madrid, Spain
| | - José C Alvarez-Cermeño
- Departments of Immunology and Neurology, Multiple Sclerosis Unit, Hospital Ramon y Cajal, (IRYCIS), Madrid, Spain
| | | | - Antonio J Sánchez
- Neuroimmunology, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Rafael Arroyo
- Multiple Sclerosis Unit, Neurology Department. Hospital Clínico S. Carlos, Instituto de Investigación Sanitaria S. Carlos (IdISSC), Madrid, Spain
| | | | - Sunny Malhotra
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Xavier Montalban
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Antonio García-Merino
- Neuroimmunology, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Elvira Munteis
- Neurology, Hospital del Mar Medical Research Institute (IMIM), Barcelona, Spain
| | - Antonio Alcina
- Department of Cell Biology and Immunology, Instituto de Parasitología y Biomedicina "López Neyra", Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Granada, Spain
| | - Manuel Comabella
- Servei de Neurologia-Neuroimmunologia, Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Institut de Recerca Vall d'Hebron (VHIR), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Fuencisla Matesanz
- Department of Cell Biology and Immunology, Instituto de Parasitología y Biomedicina "López Neyra", Consejo Superior de Investigaciones Científicas (IPBLN-CSIC), Granada, Spain
| | - Luisa M Villar
- Departments of Immunology and Neurology, Multiple Sclerosis Unit, Hospital Ramon y Cajal, (IRYCIS), Madrid, Spain
| | - Elena Urcelay
- Immunology Department, Hospital Clínico San Carlos, Instituto de Investigación Sanitaria San Carlos (IdISSC), Madrid, Spain
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220
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Shin J, Bourdon C, Bernard M, Wilson MD, Reischl E, Waldenberger M, Ruggeri B, Schumann G, Desrivieres S, Leemans A, Abrahamowicz M, Leonard G, Richer L, Bouchard L, Gaudet D, Paus T, Pausova Z. Layered genetic control of DNA methylation and gene expression: a locus of multiple sclerosis in healthy individuals. Hum Mol Genet 2015. [PMID: 26220975 DOI: 10.1093/hmg/ddv294] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
DNA methylation may contribute to the etiology of complex genetic disorders through its impact on genome integrity and gene expression; it is modulated by DNA-sequence variants, named methylation quantitative trait loci (meQTLs). Most meQTLs influence methylation of a few CpG dinucleotides within short genomic regions (<3 kb). Here, we identified a layered genetic control of DNA methylation at numerous CpGs across a long 300 kb genomic region. This control involved a single long-range meQTL and multiple local meQTLs. The long-range meQTL explained up to 75% of variance in methylation of CpGs located over extended areas of the 300 kb region. The meQTL was identified in four samples (P = 2.8 × 10(-17), 3.1 × 10(-31), 4.0 × 10(-71) and 5.2 × 10(-199)), comprising a total of 2796 individuals. The long-range meQTL was strongly associated not only with DNA methylation but also with mRNA expression of several genes within the 300 kb region (P = 7.1 × 10(-18)-1.0 × 10(-123)). The associations of the meQTL with gene expression became attenuated when adjusted for DNA methylation (causal inference test: P = 2.4 × 10(-13)-7.1 × 10(-20)), indicating coordinated regulation of DNA methylation and gene expression. Further, the long-range meQTL was found to be in linkage disequilibrium with the most replicated locus of multiple sclerosis, a disease affecting primarily the brain white matter. In middle-aged adults free of the disease, we observed that the risk allele was associated with subtle structural properties of the brain white matter found in multiple sclerosis (P = 0.02). In summary, we identified a long-range meQTL that controls methylation and expression of several genes and may be involved in increasing brain vulnerability to multiple sclerosis.
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Affiliation(s)
- Jean Shin
- The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Celine Bourdon
- The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Manon Bernard
- The Hospital for Sick Children, University of Toronto, Toronto, Canada
| | - Michael D Wilson
- The Hospital for Sick Children, University of Toronto, Toronto, Canada, Department of Molecular Genetics
| | - Eva Reischl
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Munich, Germany
| | - Melanie Waldenberger
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, Munich, Germany
| | - Barbara Ruggeri
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Gunter Schumann
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Sylvane Desrivieres
- MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Alexander Leemans
- Image Sciences Institute, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | | | | | - Gabriel Leonard
- Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Louis Richer
- Department of Psychology, Université du Québec à Chicoutimi, Chicoutimi, Canada
| | - Luigi Bouchard
- Department of Biochemistry, Université de Sherbrooke, Sherbrooke, Canada, ECOGENE-21 and Lipid Clinic, Chicoutimi Hospital, Chicoutimi, Canada
| | - Daniel Gaudet
- ECOGENE-21 and Lipid Clinic, Chicoutimi Hospital, Chicoutimi, Canada, Department of Medicine, Université de Montréal, Montréal, Canada and
| | - Tomas Paus
- Rotman Research Institute, University of Toronto, Toronto, Canada, Child Mind Institute, New York, NY, USA
| | - Zdenka Pausova
- The Hospital for Sick Children, University of Toronto, Toronto, Canada, Department of Physiology, Department of Nutritional Sciences,
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221
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Farias AS, Santos LMB. How can proteomics elucidate the complexity of multiple sclerosis? Proteomics Clin Appl 2015; 9:844-7. [DOI: 10.1002/prca.201400171] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 04/28/2015] [Accepted: 05/11/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Alessandro S. Farias
- Neuroimmunomodulation Group and Neuroimmunology Unit; Department of Genetics; Evolution and Bioagents, University of Campinas; Campinas São Paulo Brazil
| | - Leonilda M. B. Santos
- Neuroimmunomodulation Group and Neuroimmunology Unit; Department of Genetics; Evolution and Bioagents, University of Campinas; Campinas São Paulo Brazil
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222
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Multiple Sclerosis Risk Allele in CLEC16A Acts as an Expression Quantitative Trait Locus for CLEC16A and SOCS1 in CD4+ T Cells. PLoS One 2015. [PMID: 26203907 PMCID: PMC4512731 DOI: 10.1371/journal.pone.0132957] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
For multiple sclerosis, genome wide association studies and follow up studies have identified susceptibility single nucleotide polymorphisms located in or near CLEC16A at chromosome 16p13.13, encompassing among others CIITA, DEXI and SOCS1 in addition to CLEC16A. These genetic variants are located in intronic or intergenic regions and display strong linkage disequilibrium with each other, complicating the understanding of their functional contribution and the identification of the direct causal variant(s). Previous studies have shown that multiple sclerosis-associated risk variants in CLEC16A act as expression quantitative trait loci for CLEC16A itself in human pancreatic β-cells, for DEXI and SOCS1 in thymic tissue samples, and for DEXI in monocytes and lymphoblastoid cell lines. Since T cells are major players in multiple sclerosis pathogenesis, we have performed expression analyses of the CIITA-DEXI-CLEC16A-SOCS1 gene cluster in CD4+ and CD8+ T cells isolated from multiple sclerosis patients and healthy controls. We observed a higher expression of SOCS1 and CLEC16A in CD4+ T cells in samples homozygous for the risk allele of CLEC16A rs12927355. Pair-wise linear regression analysis revealed high correlation in gene expression in peripheral T cells of CIITA, DEXI, CLEC16A and SOCS1. Our data imply a possible regulatory role for the multiple sclerosis-associated rs12927355 in CLEC16A.
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223
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Multiple sclerosis: getting personal with induced pluripotent stem cells. Cell Death Dis 2015; 6:e1806. [PMID: 26158512 PMCID: PMC4650727 DOI: 10.1038/cddis.2015.179] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 05/27/2015] [Accepted: 06/01/2015] [Indexed: 12/13/2022]
Abstract
Human induced pluripotent stem (iPS) cells can be derived from lineage-restricted cells and represent an important tool to develop novel patient-specific cell therapies and research models for inherited and acquired diseases. Recently, patient-derived iPS cells, containing donor genetic background, have offered a breakthrough approach to study human genetics of neurodegenerative diseases. By offering an unlimited source of patient-specific disease-relevant cells, iPS cells hold great promise for understanding disease mechanisms, identifying molecular targets and developing phenotypic screens for drug discovery. This review will discuss the potential impact of using iPS cell-derived models in multiple sclerosis (MS) research and highlight some of the current challenges and prospective for generating novel therapeutic treatments for MS patients.
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224
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Hollenbach JA, Oksenberg JR. The immunogenetics of multiple sclerosis: A comprehensive review. J Autoimmun 2015; 64:13-25. [PMID: 26142251 DOI: 10.1016/j.jaut.2015.06.010] [Citation(s) in RCA: 223] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Accepted: 06/23/2015] [Indexed: 12/21/2022]
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system and common cause of non-traumatic neurological disability in young adults. The likelihood for an individual to develop MS is strongly influenced by her or his ethnic background and family history of disease, suggesting that genetic susceptibility is a key determinant of risk. Over 100 loci have been firmly associated with susceptibility, whereas the main signal genome-wide maps to the class II region of the human leukocyte antigen (HLA) gene cluster and explains up to 10.5% of the genetic variance underlying risk. HLA-DRB1*15:01 has the strongest effect with an average odds ratio of 3.08. However, complex allelic hierarchical lineages, cis/trans haplotypic effects, and independent protective signals in the class I region of the locus have been described as well. Despite the remarkable molecular dissection of the HLA region in MS, further studies are needed to generate unifying models to account for the role of the MHC in disease pathogenesis. Driven by the discovery of combinatorial associations of Killer-cell Immunoglobulin-like Receptor (KIR) and HLA alleles with infectious, autoimmune diseases, transplantation outcome and pregnancy, multi-locus immunogenomic research is now thriving. Central to immunity and critically important for human health, KIR molecules and their HLA ligands are encoded by complex genetic systems with extraordinarily high levels of sequence and structural variation and complex expression patterns. However, studies to-date of KIR in MS have been few and limited to very low resolution genotyping. Application of modern sequencing methodologies coupled with state of the art bioinformatics and analytical approaches will permit us to fully appreciate the impact of HLA and KIR variation in MS.
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Affiliation(s)
- Jill A Hollenbach
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA.
| | - Jorge R Oksenberg
- Department of Neurology, University of California San Francisco, San Francisco, CA 94158, USA
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225
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't Hart BA. Why does multiple sclerosis only affect human primates? Mult Scler 2015; 22:559-63. [PMID: 26540733 DOI: 10.1177/1352458515591862] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Accepted: 05/26/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND Multiple sclerosis (MS) develops exclusively in humans. Non-human primates are resistant against MS, although they are highly susceptible to the MS animal model, experimental autoimmune encephalomyelitis (EAE). Unravelling of the cause(s) underlying this discrepancy is highly relevant as insights might be gained into the elusive event(s) that trigger(s) MS. A well-established difference between the human primate (Homo sapiens) and non-human primates is that humans are unable to synthesize the sialic acid N-glycolylneuraminic acid (Neu5Gc). VIEWPOINT We propose the concept that long-term ingestion by human primates of the foreign Neu5Gc, via red meat consumption, is an ignored environmental risk factor for MS. Conceptually, incorporation of dietary Neu5Gc into vital regions of the central nervous system, such as the blood-brain barrier (BBB) and the axon-myelin unit, creates targets for binding of de novo synthesized heterophilic anti-NeuGc antibodies. Binding of the antibodies can cause BBB leakage and destabilization of the axon-myelin coupling. The ensuing cytodegeneration and release of self-antigens could be a start of the characteristic pathological features of MS.
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Affiliation(s)
- Bert A 't Hart
- University of Groningen, University Medical Center, Department of Neuroscience, Groningen, The Netherlands
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226
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Fitzner B, Hecker M, Zettl UK. Molecular biomarkers in cerebrospinal fluid of multiple sclerosis patients. Autoimmun Rev 2015; 14:903-13. [PMID: 26071103 DOI: 10.1016/j.autrev.2015.06.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Accepted: 06/03/2015] [Indexed: 12/15/2022]
Abstract
Multiple sclerosis (MS) is a chronic immune-mediated disease of the central nervous system, usually occurring in young adults and leading to disability. Despite the progress in technology and intensive research work of the last years, diagnosing MS can still be challenging. A heterogenic and complex pathophysiology with various types of disease courses makes MS unique for each patient. There is an urgent need to identify markers facilitating rapid and accurate diagnosis and prognostic assessments with regard to optimal therapy for each MS patient. Cerebrospinal fluid (CSF) is an outstanding source of specific markers related to MS pathology. Molecules reflecting specific pathological processes, such as inflammation, cellular damage, and loss of blood-brain-barrier integrity, are detectable in CSF. Clinically used biomarkers of CSF are oligoclonal bands, IgG-index, measles-rubella-zoster-reaction, anti-aquaporin 4 antibodies, and antibodies against John Cunningham virus. Many other potential biomarkers have been proposed in recent years. In this review we examine the current scientific knowledge on CSF molecular markers that could guide diagnosis and discrimination of different MS forms, support treatment decisions, or be helpful in monitoring and predicting disease progression, therapy response, and complications such as opportunistic infections.
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Affiliation(s)
- Brit Fitzner
- University Medicine Rostock, Department of Neurology, Division of Neuroimmunology, Gehlsheimer Str. 20, 18147 Rostock, Germany; STZ for Proteome Analysis, Schillingallee 69, 18057 Rostock, Germany.
| | - Michael Hecker
- University Medicine Rostock, Department of Neurology, Division of Neuroimmunology, Gehlsheimer Str. 20, 18147 Rostock, Germany; STZ for Proteome Analysis, Schillingallee 69, 18057 Rostock, Germany.
| | - Uwe Klaus Zettl
- STZ for Proteome Analysis, Schillingallee 69, 18057 Rostock, Germany.
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227
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Multiple Sclerosis and T Lymphocytes: An Entangled Story. J Neuroimmune Pharmacol 2015; 10:528-46. [PMID: 25946987 DOI: 10.1007/s11481-015-9614-0] [Citation(s) in RCA: 135] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Accepted: 04/29/2015] [Indexed: 12/17/2022]
Abstract
Multiple sclerosis (MS) is the prototypic inflammatory disease of the central nervous system (CNS) characterized by multifocal areas of demyelination, axonal damage, activation of glial cells, and immune cell infiltration. Despite intensive years of research, the etiology of this neurological disorder remains elusive. Nevertheless, the abundance of immune cells such as T lymphocytes and their products in CNS lesions of MS patients supports the notion that MS is an immune-mediated disorder. An important body of evidence gathered from MS animal models such as experimental autoimmune encephalomyelitis (EAE), points to the central contribution of CD4 T lymphocytes in disease pathogenesis. Both Th1 (producing interferon-γ) and Th17 (producing interleukin 17) CD4 T lymphocytes targeting CNS self-antigens have been implicated in MS and EAE pathobiology. Moreover, several publications suggest that CD8 T lymphocytes also participate in the development of MS lesions. The migration of activated T lymphocytes from the periphery into the CNS has been identified as a crucial step in the formation of MS lesions. Several factors promote such T cell extravasation including: molecules (e.g., cell adhesion molecules) implicated in the T cell-blood brain barrier interaction, and chemokines produced by neural cells. Finally, once in the CNS, T lymphocytes need to be reactivated by local antigen presenting cells prior to enter the parenchyma where they can initiate damage. Further investigations will be necessary to elucidate the impact of environmental factors (e.g., gut microbiota) and CNS intrinsic properties (e.g., microglial activation) on this inflammatory neurological disease.
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228
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Hilven K, Patsopoulos NA, Dubois B, Goris A. Burden of risk variants correlates with phenotype of multiple sclerosis. Mult Scler 2015; 21:1670-80. [PMID: 25948629 DOI: 10.1177/1352458514568174] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 12/19/2014] [Indexed: 11/16/2022]
Abstract
BACKGROUND More than 100 common variants underlying multiple sclerosis (MS) susceptibility have been identified, but their effect on disease phenotype is still largely unknown. OBJECTIVE The objective of this paper is to assess whether the cumulative genetic risk score of currently known susceptibility variants affects clinical presentation. METHODS A cumulative genetic risk score was based on four human leukocyte antigen (HLA) and 106 non-HLA risk loci genotyped or imputed in 842 Belgian MS patients and 321 controls. Non-parametric analyses were applied. RESULTS An increased genetic risk is observed for MS patients, including subsets such as oligoclonal band-negative and primary progressive MS patients, compared to controls. Within the patient group, a stronger association between HLA risk variants and the presence of oligoclonal bands, an increased immunoglobulin G (IgG) index and female gender was apparent. Results suggest an association between a higher accumulation of non-HLA risk variants and increased relapse rate as well as shorter relapse-free intervals after disease onset. CONCLUSION MS patients display a significantly increased genetic risk compared to controls, irrespective of disease course or presence of oligoclonal bands. Whereas the cumulative burden of non-HLA risk variants appears to be reflected in the relapses of MS patients, the HLA region influences intrathecal IgG levels.
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Affiliation(s)
- Kelly Hilven
- Laboratory for Neuroimmunology, Department of Neurosciences, Experimental Neurology, KU Leuven - University of Leuven, Belgium
| | - Nikolaos A Patsopoulos
- Department of Neurology, Brigham & Women's Hospital, USA/Harvard Medical School, USA/Broad Institute, USA
| | - Bénédicte Dubois
- Laboratory for Neuroimmunology, Department of Neurosciences, Experimental Neurology, KU Leuven - University of Leuven, Belgium/Department of Neurology, University Hospitals Leuven, Belgium
| | - An Goris
- Laboratory for Neuroimmunology, Department of Neurosciences, Experimental Neurology, KU Leuven - University of Leuven, Belgium
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229
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Gunnarsson M, Udumyan R, Bahmanyar S, Nilsagård Y, Montgomery S. Characteristics in childhood and adolescence associated with future multiple sclerosis risk in men: cohort study. Eur J Neurol 2015; 22:1131-7. [PMID: 25919640 PMCID: PMC4975688 DOI: 10.1111/ene.12718] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 02/26/2015] [Indexed: 02/01/2023]
Abstract
Background and purpose Associations with multiple sclerosis (MS) of living conditions in childhood and characteristics in adolescence including physical fitness, cognitive function and psychological stress resilience were investigated. Methods A cohort of male Swedish residents born 1952–1956 who were included in the Swedish Military Conscription Register was used to create a nested case−control study comprising 628 MS cases and 6187 controls matched on birth year, county of residence and vital status at time of diagnosis. Conscription examination records were linked with other national register data. Conditional logistic regression was used to evaluate associations with MS subsequent to the conscription examination. Results and conclusions Men with MS were less likely to be from more crowded households in childhood (>two persons per room) with an adjusted odds ratio of 0.67 (95% confidence interval 0.51–0.86, P = 0.023). They had lower physical working capacity in adolescence with adjusted odds ratio of 0.94 (95% confidence interval 0.89–0.99, P = 0.026). Cognitive function and stress resilience scores displayed no significant differences between cases and controls. Parental occupation in childhood and body mass index in adolescence were not associated with future MS risk. The inverse association of MS risk with higher levels of household crowding may reflect environmental factors such as the pattern of exposure to microorganisms. Lower physical fitness in men at MS risk may indicate a protective effect of exercise or could be due to prodromal disease activity, although there was no association with cognitive function. Poor psychological stress resilience (and thus risk of chronic stress arousal) was not associated with MS.
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Affiliation(s)
- M Gunnarsson
- Department of Neurology and Neurophysiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - R Udumyan
- Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - S Bahmanyar
- Clinical Epidemiology Unit and Centre for Pharmacoepidemiology, Department of Medicine, Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden.,Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
| | - Y Nilsagård
- Faculty of Medicine and Health, Medicine, Örebro University, Örebro, Sweden
| | - S Montgomery
- Department of Clinical Epidemiology and Biostatistics, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.,Clinical Epidemiology Unit, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden.,Research Department of Epidemiology and Public Health, University College, London, UK
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230
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Klinker MW, Wei CH. Mesenchymal stem cells in the treatment of inflammatory and autoimmune diseases in experimental animal models. World J Stem Cells 2015; 7:556-567. [PMID: 25914763 PMCID: PMC4404391 DOI: 10.4252/wjsc.v7.i3.556] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 11/07/2014] [Accepted: 01/12/2015] [Indexed: 02/07/2023] Open
Abstract
Multipotent mesenchymal stromal cells [also known as mesenchymal stem cells (MSCs)] are currently being studied as a cell-based treatment for inflammatory disorders. Experimental animal models of human immune-mediated diseases have been instrumental in establishing their immunosuppressive properties. In this review, we summarize recent studies examining the effectiveness of MSCs as immunotherapy in several widely-studied animal models, including type 1 diabetes, experimental autoimmune arthritis, experimental autoimmune encephalomyelitis, inflammatory bowel disease, graft-vs-host disease, and systemic lupus erythematosus. In addition, we discuss mechanisms identified by which MSCs mediate immune suppression in specific disease models, and potential sources of functional variability of MSCs between studies.
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231
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Kaushansky N, Eisenstein M, Boura-Halfon S, Hansen BE, Nielsen CH, Milo R, Zeilig G, Lassmann H, Altmann DM, Ben-Nun A. Role of a Novel Human Leukocyte Antigen-DQA1*01:02;DRB1*15:01 Mixed Isotype Heterodimer in the Pathogenesis of "Humanized" Multiple Sclerosis-like Disease. J Biol Chem 2015; 290:15260-78. [PMID: 25911099 DOI: 10.1074/jbc.m115.641209] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Indexed: 11/06/2022] Open
Abstract
Gene-wide association and candidate gene studies indicate that the greatest effect on multiple sclerosis (MS) risk is driven by the HLA-DRB1*15:01 allele within the HLA-DR15 haplotype (HLA-DRB1*15:01-DQA1*01:02-DQB1*0602-DRB5*01:01). Nevertheless, linkage disequilibrium makes it difficult to define, without functional studies, whether the functionally relevant effect derives from DRB1*15:01 only, from its neighboring DQA1*01:02-DQB1*06:02 or DRB5*01:01 genes of HLA-DR15 haplotype, or from their combinations or epistatic interactions. Here, we analyzed the impact of the different HLA-DR15 haplotype alleles on disease susceptibility in a new "humanized" model of MS induced in HLA-transgenic (Tg) mice by human oligodendrocyte-specific protein (OSP)/claudin-11 (hOSP), one of the bona fide potential primary target antigens in MS. We show that the hOSP-associated MS-like disease is dominated by the DRB1*15:01 allele not only as the DRA1*01:01;DRB1*15:01 isotypic heterodimer but also, unexpectedly, as a functional DQA1*01:02;DRB1*15:01 mixed isotype heterodimer. The contribution of HLA-DQA1/DRB1 mixed isotype heterodimer to OSP pathogenesis was revealed in (DRB1*1501xDQB1*0602)F1 double-Tg mice immunized with hOSP(142-161) peptide, where the encephalitogenic potential of prevalent DRB1*1501/hOSP(142-161)-reactive Th1/Th17 cells is hindered due to a single amino acid difference in the OSP(142-161) region between humans and mice; this impedes binding of DRB1*1501 to the mouse OSP(142-161) epitope in the mouse CNS while exposing functional binding of mouse OSP(142-161) to DQA1*01:02;DRB1*15:01 mixed isotype heterodimer. This study, which shows for the first time a functional HLA-DQA1/DRB1 mixed isotype heterodimer and its potential association with disease susceptibility, provides a rationale for a potential effect on MS risk from DQA1*01:02 through functional DQA1*01:02;DRB1*15:01 antigen presentation. Furthermore, it highlights a potential contribution to MS risk also from interisotypic combination between products of neighboring HLA-DR15 haplotype alleles, in this case the DQA1/DRB1 combination.
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Affiliation(s)
| | - Miriam Eisenstein
- Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | | | - Bjarke Endel Hansen
- the Institute for Inflammation Research, Department of Infectious Diseases and Rheumatology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Claus Henrik Nielsen
- the Institute for Inflammation Research, Department of Infectious Diseases and Rheumatology, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, DK-2100 Copenhagen, Denmark
| | - Ron Milo
- the Department of Neurology, Barzilai Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Ashkelon 78278, Israel
| | - Gabriel Zeilig
- the Department of Neurological Rehabilitation, Chaim Sheba Medical Center, Tel Hashomer 52621, Israel, the Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Hans Lassmann
- the Center for Brain Research, Department of Neuroimmunology, Medical University of Vienna, 1090 Vienna, Austria, and
| | - Daniel M Altmann
- the Department of Medicine, Imperial College, Hammersmith Hospital, London W12 0HS, United Kingdom
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232
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Partridge MA, Myers SJ, Gopinath S, Coorssen JR. Proteomics of a conundrum: Thoughts on addressing the aetiology versus progression of multiple sclerosis. Proteomics Clin Appl 2015; 9:838-43. [PMID: 25580822 DOI: 10.1002/prca.201400141] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 11/03/2014] [Accepted: 01/05/2015] [Indexed: 12/27/2022]
Abstract
Currently in the field of multiple sclerosis (MS) research there is an ongoing debate concerning the cause of the disease. MS is widely considered to begin with an autoimmune dysregulation. The disease does have a prominent autoimmune component however this may be representative of a secondary effect. There is growing evidence that the disease may be initiated by an underlying degeneration of oligodendrocytes. In our viewpoint, we discuss the potential differences between the aetiology and progression of MS. For the most part, proteomic analysis has focused on the autoimmune component of the disease. We suggest that proteomic analysis should be applied to investigating oligodendrocyte degeneration. We discuss the potential of the cuprizone animal model of demyelination and its usefulness in understanding oligodendrocyte degeneration. Immune suppressive therapies are effective at reducing clinical symptoms and improving quality of life. However, a cure is still lacking and as such the disease does still progress. We suggest that if the initiating cause is poorly understood, then curing MS is unlikely.
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Affiliation(s)
- Melissa A Partridge
- Department of Molecular Physiology, School of Medicine, University of Western Sydney, Penrith, NSW, Australia.,Molecular Medicine Research Group, School of Medicine, University of Western Sydney, Penrith, NSW, Australia
| | - Simon J Myers
- Molecular Medicine Research Group, School of Medicine, University of Western Sydney, Penrith, NSW, Australia.,Neuro-Cell Biology Laboratory, School of Science and Health, University of Western Sydney, Penrith, NSW, Australia
| | - Sumana Gopinath
- Molecular Medicine Research Group, School of Medicine, University of Western Sydney, Penrith, NSW, Australia.,Department of Neurology, Campbelltown Hospital, Campbelltown, NSW, Australia
| | - Jens R Coorssen
- Department of Molecular Physiology, School of Medicine, University of Western Sydney, Penrith, NSW, Australia.,Molecular Medicine Research Group, School of Medicine, University of Western Sydney, Penrith, NSW, Australia
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233
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Watad A, Versini M, Jeandel PY, Amital H, Shoenfeld Y. Treating prolactinoma can prevent autoimmune diseases. Cell Immunol 2015; 294:84-6. [DOI: 10.1016/j.cellimm.2014.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2014] [Accepted: 11/03/2014] [Indexed: 12/20/2022]
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234
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Gurevich M, Miron G, Achiron A. Optimizing multiple sclerosis diagnosis: gene expression and genomic association. Ann Clin Transl Neurol 2015; 2:271-7. [PMID: 25815353 PMCID: PMC4369276 DOI: 10.1002/acn3.174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 12/23/2014] [Accepted: 12/23/2014] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVE The diagnosis of multiple sclerosis (MS) at disease onset is sometimes masqueraded by other diagnostic options resembling MS clinically or radiologically (NonMS). In the present study we utilized findings of large-scale Genome-Wide Association Studies (GWAS) to develop a blood gene expression-based classification tool to assist in diagnosis during the first demyelinating event. METHODS We have merged knowledge of 110 MS susceptibility genes gained from MS GWAS studies together with our experimental results of differential blood gene expression profiling between 80 MS and 31 NonMS patients. Multiple classification algorithms were applied to this cohort to construct a diagnostic classifier that correctly distinguished between MS and NonMS patients. Accuracy of the classifier was tested on an additional independent group of 146 patients including 121 MS and 25 NonMS patients. RESULTS We have constructed a 42 gene-transcript expression-based MS diagnostic classifier. The overall accuracy of the classifier, as tested on an independent patient population consisting of diagnostically challenging cases including NonMS patients with positive MRI findings, achieved a correct classification rate of 76.0 ± 3.5%. INTERPRETATION The presented diagnostic classification tool complements the existing diagnostic McDonald criteria by assisting in the accurate exclusion of other neurological diseases at presentation of the first demyelinating event suggestive of MS.
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Affiliation(s)
- Michael Gurevich
- Multiple Sclerosis Center, Sheba Medical Center Ramat-Gan, Israel
| | - Gadi Miron
- Multiple Sclerosis Center, Sheba Medical Center Ramat-Gan, Israel
| | - Anat Achiron
- Multiple Sclerosis Center, Sheba Medical Center Ramat-Gan, Israel ; Sackler School of Medicine, Tel Aviv University Tel Aviv, Israel
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235
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Isobe N, Madireddy L, Khankhanian P, Matsushita T, Caillier SJ, Moré JM, Gourraud PA, McCauley JL, Beecham AH, Piccio L, Herbert J, Khan O, Cohen J, Stone L, Santaniello A, Cree BAC, Onengut-Gumuscu S, Rich SS, Hauser SL, Sawcer S, Oksenberg JR. An ImmunoChip study of multiple sclerosis risk in African Americans. Brain 2015; 138:1518-30. [PMID: 25818868 DOI: 10.1093/brain/awv078] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 01/26/2015] [Indexed: 12/27/2022] Open
Abstract
The aims of this study were: (i) to determine to what degree multiple sclerosis-associated loci discovered in European populations also influence susceptibility in African Americans; (ii) to assess the extent to which the unique linkage disequilibrium patterns in African Americans can contribute to localizing the functionally relevant regions or genes; and (iii) to search for novel African American multiple sclerosis-associated loci. Using the ImmunoChip custom array we genotyped 803 African American cases with multiple sclerosis and 1516 African American control subjects at 130 135 autosomal single nucleotide polymorphisms. We conducted association analysis with rigorous adjustments for population stratification and admixture. Of the 110 non-major histocompatibility complex multiple sclerosis-associated variants identified in Europeans, 96 passed stringent quality control in our African American data set and of these, >70% (69) showed over-representation of the same allele amongst cases, including 21 with nominally significant evidence for association (one-tailed test P < 0.05). At a further eight loci we found nominally significant association with an alternate correlated risk-tagging single nucleotide polymorphism from the same region. Outside the regions known to be associated in Europeans, we found seven potentially associated novel candidate multiple sclerosis variants (P < 10(-4)), one of which (rs2702180) also showed nominally significant evidence for association (one-tailed test P = 0.034) in an independent second cohort of 620 African American cases and 1565 control subjects. However, none of these novel associations reached genome-wide significance (combined P = 6.3 × 10(-5)). Our data demonstrate substantial overlap between African American and European multiple sclerosis variants, indicating common genetic contributions to multiple sclerosis risk.
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Affiliation(s)
- Noriko Isobe
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA 2 Division of Neurology, Department of Internal Medicine, Saga University Faculty of Medicine, Saga, Saga 849-8501, Japan
| | - Lohith Madireddy
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Pouya Khankhanian
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Takuya Matsushita
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA 3 Department of Neurological Therapeutics, Neurological Institute, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Fukuoka 812-8582, Japan
| | - Stacy J Caillier
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Jayaji M Moré
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Pierre-Antoine Gourraud
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Jacob L McCauley
- 4 John P. Hussman Institute for Human Genomics and The Dr John T Macdonald Foundation Department of Human Genetics, University of Miami, Miller School of Medicine, Miami, FL 33136, USA
| | - Ashley H Beecham
- 4 John P. Hussman Institute for Human Genomics and The Dr John T Macdonald Foundation Department of Human Genetics, University of Miami, Miller School of Medicine, Miami, FL 33136, USA
| | | | - Laura Piccio
- 5 Department of Neurology, Washington University School of Medicine, St. Louis, MO 63108, USA
| | - Joseph Herbert
- 6 Department of Neurology, New York University School of Medicine, New York, NY 10016, USA
| | - Omar Khan
- 7 Multiple Sclerosis Centre and The Sastry Foundation Advanced Imaging Laboratory, Department of Neurology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Jeffrey Cohen
- 8 Mellen Centre for Multiple Sclerosis Treatment and Research, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Lael Stone
- 8 Mellen Centre for Multiple Sclerosis Treatment and Research, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Adam Santaniello
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Bruce A C Cree
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Suna Onengut-Gumuscu
- 9 Centre for Public Health Genomics, University of Virginia, Charlottesville, VA 22908, USA
| | - Stephen S Rich
- 9 Centre for Public Health Genomics, University of Virginia, Charlottesville, VA 22908, USA
| | - Stephen L Hauser
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
| | - Stephen Sawcer
- 10 Department of Clinical Neurosciences, Cambridge Biomedical Campus, Hills Road, Cambridge CB2 0QQ, UK
| | - Jorge R Oksenberg
- 1 Department of Neurology, School of Medicine, University of California, San Francisco, CA 94158, USA
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236
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Nicol B, Salou M, Laplaud DA, Wekerle H. The autoimmune concept of multiple sclerosis. Presse Med 2015; 44:e103-12. [PMID: 25813101 DOI: 10.1016/j.lpm.2015.02.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Accepted: 02/23/2015] [Indexed: 12/12/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory and demyelinating disease of the central nervous system (CNS). With growing evidence for environmental and genetic factors, MS is now accepted as an autoimmune disease. This complex disease seems to implicate various cell types in both innate and adaptive compartments. Here, we discuss recent advances in the immunological field of MS research.
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Affiliation(s)
- Bryan Nicol
- CHU de Nantes, service de neurologie, Inserm CR1064, 44093 Nantes cedex, France
| | - Marion Salou
- CHU de Nantes, service de neurologie, Inserm CR1064, 44093 Nantes cedex, France
| | - David-Axel Laplaud
- CHU de Nantes, service de neurologie, Inserm CR1064, 44093 Nantes cedex, France.
| | - Hartmut Wekerle
- Max Planck institute of neurobiology, department of neuroimmunology, Planegg-Martinsried, 31, 81377 Munich, Germany
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237
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Bashinskaya VV, Kulakova OG, Kiselev IS, Baulina NM, Favorov AV, Boyko AN, Tsareva EY, Favorova OO. GWAS-identified multiple sclerosis risk loci involved in immune response: validation in Russians. J Neuroimmunol 2015; 282:85-91. [PMID: 25903733 DOI: 10.1016/j.jneuroim.2015.03.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Revised: 03/15/2015] [Accepted: 03/16/2015] [Indexed: 01/01/2023]
Abstract
Multiple sclerosis (MS) is a chronic neuro-inflammatory disease of complex etiology. The results of GWAS, a high-throughput method to discover genetic architecture of MS, require replication in independent ethnic groups. We performed a replication study of nine GWAS-identified SNPs in immune response in Russians. Associations of CLEC16A and IL2RA with MS were validated. Besides, we observed the associations of CLEC16A and IRF8 in women, and IL7RA and CD58 in men. With multi-locus association analysis two protective biallelic combinations: (TNFRSF1A*T+CLEC16A*A) and (TNFRSF1A*T+IRF8*A) were identified in women. Associations of CLEC16A*G/G and both biallelic combinations in women with MS survived the permutation test.
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Affiliation(s)
- V V Bashinskaya
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117997 Moscow, Russia; Russian Cardiology Scientific and Production Center, 3-d Cherepkovskaya str, 15A, Moscow 121552 Russia.
| | - O G Kulakova
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117997 Moscow, Russia; Russian Cardiology Scientific and Production Center, 3-d Cherepkovskaya str, 15A, Moscow 121552 Russia
| | - I S Kiselev
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117997 Moscow, Russia
| | - N M Baulina
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117997 Moscow, Russia
| | - A V Favorov
- Johns Hopkins School of Medicine, 550 North Broadway, Baltimore, MD 21205, USA; Vavilov Institute of General Genetics, Russian Academy of Sciences, Gubkina str. 3, 119333 Moscow, Russia
| | - A N Boyko
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117997 Moscow, Russia
| | - E Yu Tsareva
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117997 Moscow, Russia; Russian Cardiology Scientific and Production Center, 3-d Cherepkovskaya str, 15A, Moscow 121552 Russia
| | - O O Favorova
- Pirogov Russian National Research Medical University, Ostrovitianov str. 1, 117997 Moscow, Russia; Russian Cardiology Scientific and Production Center, 3-d Cherepkovskaya str, 15A, Moscow 121552 Russia
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239
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The +190 G/A (rs1799864) polymorphism in the C–C chemokine receptor 2 (CCR2) gene is associated with susceptibility to multiple sclerosis in HLA-DRB1*15:01-negative individuals. J Neurol Sci 2015; 349:138-42. [DOI: 10.1016/j.jns.2015.01.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 11/22/2014] [Accepted: 01/02/2015] [Indexed: 11/18/2022]
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240
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MS risk allele rs1883832T is associated with decreased mRNA expression of CD40. J Mol Neurosci 2015; 56:540-5. [PMID: 25600834 DOI: 10.1007/s12031-015-0490-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 01/05/2015] [Indexed: 12/25/2022]
Abstract
CD40-CD40L interactions mediate T-dependent B cell response and efficient T cell priming. Therefore, genes encoding these molecules are attractive candidates for studies on autoimmune diseases, such as multiple sclerosis (MS), in which activated T and B cells are involved. Thus, we analyzed CD40 and CD40L mRNA expression in whole blood samples from MS patients and controls. Additionally, we examined the effect of three SNPs of CD40 (rs1883832C>T, rs11569343C>G, and rs752118C>T) and two SNPs of CD40L (rs3092923T>C and rs3092952A>G) on their mRNA expression. Our results showed that the rs1883832C>T SNP affects CD40 gene expression. Our analysis revealed that individuals possessing CT and TT genotypes (predisposing to MS) had decreased level of CD40 mRNA in comparison to those with CC. Moreover, we demonstrated the potential role of impaired CD40-CD40L interaction in developing of multiple sclerosis.
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241
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Fagnani C, Neale MC, Nisticò L, Stazi MA, Ricigliano VA, Buscarinu MC, Salvetti M, Ristori G. Twin studies in multiple sclerosis: A meta-estimation of heritability and environmentality. Mult Scler 2015; 21:1404-13. [PMID: 25583848 DOI: 10.1177/1352458514564492] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 11/16/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND Most twin studies of multiple sclerosis (MS) are inconclusive regarding the impact of genes and environment on disease susceptibility. In particular, high uncertainty exists about whether shared environmental factors are aetiologically relevant. OBJECTIVE To disentangle, with a reasonable degree of confidence, the relative contributions of heritability and of shared and unique environmental components of MS susceptibility. METHODS We performed a meta-analysis of previous twin studies. After a MEDLINE search, we selected eight twin studies in France, UK, Canada, Denmark, North America, Italy, Finland and Sweden. We conducted a biometric multi-group analysis under the liability-threshold model, by taking account of the study-specific ascertainment strategies and the population-specific prevalence rates of MS. RESULTS The meta-analytic estimates of tetrachoric correlations were 0.71 (95% confidence interval (CI): 0.67-0.74) in monozygotic pairs and 0.46 (95% CI: 0.41-0.50) in dizygotic pairs. The biometric multi-group model provided meta-analytic estimates of 0.50 (95% CI: 0.39-0.61) for heritability, 0.21 (95% CI: 0.11-0.30) for shared environmental component and 0.29 (95% CI: 0.26-0.33) for unique environmental component. CONCLUSION Our results support the continuing efforts to identify unknown genetic factors that fill the gap of 'missing heritability'; moreover, a 'missing environmentality' deserves future investigations into the role of non-heritable components that act as both shared and individual-specific exposures.
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Affiliation(s)
- Corrado Fagnani
- National Centre for Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità, Rome, Italy
| | - Michael C Neale
- Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, USA
| | - Lorenza Nisticò
- National Centre for Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità, Rome, Italy
| | - Maria A Stazi
- National Centre for Epidemiology, Surveillance and Health Promotion, Istituto Superiore di Sanità, Rome, Italy
| | - Vito A Ricigliano
- Centre for Experimental Neurological Therapies (CENTERS), Neurology and Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), 'Sapienza' University of Rome, Italy
| | - Maria C Buscarinu
- Centre for Experimental Neurological Therapies (CENTERS), Neurology and Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), 'Sapienza' University of Rome, Italy
| | - Marco Salvetti
- Centre for Experimental Neurological Therapies (CENTERS), Neurology and Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), 'Sapienza' University of Rome, Italy
| | - Giovanni Ristori
- Centre for Experimental Neurological Therapies (CENTERS), Neurology and Department of Neurosciences, Mental Health and Sensory Organs (NESMOS), 'Sapienza' University of Rome, Italy
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242
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Susceptibility variants in the CD58 gene locus point to a role of microRNA-548ac in the pathogenesis of multiple sclerosis. MUTATION RESEARCH-REVIEWS IN MUTATION RESEARCH 2015; 763:161-7. [DOI: 10.1016/j.mrrev.2014.10.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/06/2014] [Accepted: 10/07/2014] [Indexed: 11/18/2022]
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243
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Procaccini C, Pucino V, Mantzoros CS, Matarese G. Leptin in autoimmune diseases. Metabolism 2015; 64:92-104. [PMID: 25467840 DOI: 10.1016/j.metabol.2014.10.014] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2014] [Accepted: 10/20/2014] [Indexed: 12/22/2022]
Abstract
The past twenty years of research on leptin has provided crucial information on the link between metabolic state and immune system function. Adipocytes influence not only the endocrine system but also the immune response, through several cytokine-like mediators known as adipokines, which include leptin. Initially described as an antiobesity hormone, leptin has subsequently been shown also to influence hematopoiesis, thermogenesis, reproduction, angiogenesis, and more importantly immune homeostasis. As a cytokine, leptin can affect thymic homeostasis and the secretion of acute-phase reactants such as interleukin-1 (IL-1) and tumor-necrosis factor-alpha (TNF-α). Leptin links nutritional status and proinflammatory T helper 1 (Th1) immune responses and the decrease in leptin plasma concentration during food deprivation leads to impaired immune function. Conversely, elevated circulating leptin levels in obesity appear to contribute to the low-grade inflammatory background which makes obese individuals more susceptible to increased risk of developing cardiovascular diseases, diabetes, or degenerative disease including autoimmunity and cancer. In this review, we provide an overview of recent advances on the role of leptin in the pathogenesis of several autoimmune disorders that may be of particular relevance in the modulation of the autoimmune attack through metabolic-based therapeutic approaches.
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Affiliation(s)
- Claudio Procaccini
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR) c/o Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli "Federico II", 80131 Napoli, Italy
| | - Valentina Pucino
- Dipartimento di Scienze Mediche Traslazionali, Università degli Studi di Napoli "Federico II", 80131 Napoli, Italy
| | - Christos S Mantzoros
- Section of Endocrinology, Boston VA Healthcare System, Jamaica Plain, MA; Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA; Department of Medicine, Boston Medical Center, Boston University, 72 Evans Street, Boston, MA 02217, USA
| | - Giuseppe Matarese
- Dipartimento di Medicina e Chirurgia, Facoltà di Medicina e Chirurgia, Università di Salerno, Baronissi Campus, 84081 Baronissi, Salerno, Italy; IRCCS-MultiMedica, 20138 Milano, Italy.
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244
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Varzari A, Bruch K, Deyneko IV, Chan A, Epplen JT, Hoffjan S. Analysis of polymorphisms in RIG-I-like receptor genes in German multiple sclerosis patients. J Neuroimmunol 2014; 277:140-4. [PMID: 25288302 DOI: 10.1016/j.jneuroim.2014.09.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/16/2014] [Accepted: 09/17/2014] [Indexed: 12/20/2022]
Abstract
Variation in genes encoding retinoid acid-inducible gene I (RIG-I)-like receptors (RLRs) has been implicated in the pathogenesis of autoimmune disorders. We investigated if polymorphisms in the IFIH1, RIG-I, LGP2 and VISA genes influence the risk for multiple sclerosis (MS) in a German case-control cohort comprising 716 patients and 706 controls. Evaluation of 18 single nucleotide polymorphisms (SNPs) in the four genes did not reveal significant single-SNP associations with MS risk, but two VISA polymorphisms were modestly associated with age of onset. Further, we provide initial evidence for combinatorial effects of polymorphic variants in the RIG-I, LGP2 and IFIH1 genes on MS risk.
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Affiliation(s)
- Alexander Varzari
- Laboratory of Human Genetics, Institute of Phthisiopneumology, Kishinev, Republic of Moldova; Department of Human Genetics, Ruhr-University, Bochum, Germany
| | - Kathrin Bruch
- Department of Human Genetics, Ruhr-University, Bochum, Germany
| | - Igor V Deyneko
- Department of Molecular Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Andrew Chan
- Department of Neurology, St. Josef-Hospital, Ruhr-University, Bochum, Germany
| | - Joerg T Epplen
- Department of Human Genetics, Ruhr-University, Bochum, Germany; Faculty of Health, University Witten/Herdecke, Witten, Germany
| | - Sabine Hoffjan
- Department of Human Genetics, Ruhr-University, Bochum, Germany
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245
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Tackenberg B, Schneider-Hohendorf T, Müller A, Schodrowski J, Wiendl H. [Prognostic and predictively relevant factors for multiple sclerosis]. DER NERVENARZT 2014; 85:1255-62. [PMID: 25252736 DOI: 10.1007/s00115-014-4062-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The immunotherapy of multiple sclerosis (MS) is currently one of the most dynamic fields in clinical neurology. The comprehensive number of well-established and new innovative treatment options are a challenge for an intensive preoccupation with the differential indications and an activity-driven treatment control. In this context this review summarizes the known predictors of the natural course of MS and gives a review of challenges to be expected in association with predictors of treatment control.
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Affiliation(s)
- B Tackenberg
- Klinik für Neurologie, Bereich Neuroimmunologie, AG Klinische Neuroimmunologie, Philipps-Universität und Universitätsklinikum Marburg, Baldingerstr. 1, 35043, Marburg, Deutschland,
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246
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247
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Obesity in autoimmune diseases: Not a passive bystander. Autoimmun Rev 2014; 13:981-1000. [DOI: 10.1016/j.autrev.2014.07.001] [Citation(s) in RCA: 415] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 07/20/2014] [Indexed: 02/06/2023]
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248
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Wagner M, Bilinska M, Pokryszko-Dragan A, Sobczynski M, Cyrul M, Kusnierczyk P, Jasek M. ALCAM and CD6--multiple sclerosis risk factors. J Neuroimmunol 2014; 276:98-103. [PMID: 25216742 DOI: 10.1016/j.jneuroim.2014.08.621] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 08/19/2014] [Accepted: 08/20/2014] [Indexed: 10/24/2022]
Abstract
ALCAM and CD6 may play an important role in the pathogenesis of multiple sclerosis (MS), since they are involved in the transmigration of leukocytes across the blood-brain barrier. In this study, we confirmed our previous findings about the association of the ALCAM gene with risk, development and progression of MS. Additionally, we showed that in the case of the CD6 gene (encoding receptor of ALCAM) not only polymorphisms but also mRNA expression level are associated with MS. Our analysis revealed that the risk of the disease for AA individuals in rs12360861 was almost 3.0-fold lower in comparison to GG individuals (OR=0.34; CI95%=0.12; 0.81). Moreover, we observed lower expression of CD6 mRNA in patients than in healthy individuals (T(2)2,74=6.678; p=0.002).
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Affiliation(s)
- M Wagner
- Laboratory of Immunogenetics and Tissue Immunology, Department of Clinical Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Ul. Weigla 12, 53-114 Wroclaw, Poland.
| | - M Bilinska
- Department and Clinic of Neurology, Wroclaw Medical University, Ul. Borowska 213, 50-566 Wroclaw, Poland
| | - A Pokryszko-Dragan
- Department and Clinic of Neurology, Wroclaw Medical University, Ul. Borowska 213, 50-566 Wroclaw, Poland
| | - M Sobczynski
- Department of Genomics, Faculty of Biotechnology, University of Wrocław, Ul. Fryderyka Joliot-Curie 14a, 50-383 Wroclaw, Poland
| | - M Cyrul
- Department and Clinic of Neurology, Wroclaw Medical University, Ul. Borowska 213, 50-566 Wroclaw, Poland
| | - P Kusnierczyk
- Laboratory of Immunogenetics and Tissue Immunology, Department of Clinical Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Ul. Weigla 12, 53-114 Wroclaw, Poland
| | - M Jasek
- Laboratory of Immunogenetics and Tissue Immunology, Department of Clinical Immunology, Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, Ul. Weigla 12, 53-114 Wroclaw, Poland.
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249
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Lill CM. Recent advances and future challenges in the genetics of multiple sclerosis. Front Neurol 2014; 5:130. [PMID: 25071715 PMCID: PMC4094909 DOI: 10.3389/fneur.2014.00130] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 07/01/2014] [Indexed: 01/22/2023] Open
Abstract
Multiple sclerosis (MS) is the most common auto-inflammatory disease of the central nervous system, affecting more than 2 million individuals worldwide. It is a genetically complex disease, in which a substantial part of a person’s liability to develop MS is caused by a combination of multiple genetic and non-genetic (e.g., environmental) risk factors. Increasing this complexity, many of the involved risk factors likely interact in an intricate and hitherto ill-defined fashion. Despite these complexities, and owing greatly to the advent and application of large-scale genome-wide association studies, our understanding of the genetic factors underlying MS etiology has begun to gain unprecedented momentum. In this perspective, I will summarize some recent advances and outline future challenges in MS genetics research.
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Affiliation(s)
- Christina M Lill
- Neuropsychiatric Genetics Group, Department of Vertebrate Genomics, Max Planck Institute for Molecular Genetics , Berlin , Germany ; Focus Program Translational Neuroscience, Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz , Mainz , Germany
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